Actions of Muscles Flashcards
latissumus dorsi (3)
shoulder extension, adduction, IR
upper trapezius bi/uni (5)
bi:
head/neck– extension
uni:
head/neck–
lateral flexion
contralateral rotation
scapula–
elevate
upwardly rotate
middle trapezius (2)
scapula:
adduct/retract
stabilize
lower trapezius (2)
scapula:
depress
upwardly rotate
levator scapulae (2)
scapula:
elevate
downwardly rotate
rhomboids (3)
scapula:
adduct/retract
downwardly rotate
fix scapula to thoracic wall
splenius bi/uni (3)
bi:
head/neck—
extension
uni:
head/neck—
lateral flexion
ipsilateral rotation
erector spinae group bi/uni (2)
bi:
spine– extension
uni:
spine– ipsilateral flexion
rotatores bi/uni (2)
bi:
spine– extension
uni:
spine– contralateral rotation
multifidus bi/uni (3)
bi:
spine– extension
uni:
spine–
contralateral rotation
stabilize
semispinalis bi/uni (2)
head/neck/spine–
bi: extension
uni: contralateral rotation
rectus capitis posterior major and minor (2)
head–
extension
ipsilateral rotation
obliquus capitis superior bi/uni (2)
head–
bi:
extension
uni:
ipsilateral flexion
obliquus capitis inferior (1)
head– ipsilateral rotation
deltoid (clavicular) (2)
shoulder–
flexion
IR